condition mean min max 3 h after light 20.980333333333334 18.241 26.0557 6 h after light 19.98593333333333 16.2236 23.1333 9 h after light 20.5734 15.1567 25.3504 12 h after light 26.4426 15.1098 50.1244 3 h after dark 62.817299999999996 55.1868 70.4249 6 h after dark 44.26733333333333 38.276 52.0524 9 h after dark 36.678733333333334 31.5211 39.2955 12 h after dark 39.48695 34.7404 44.2335